Pump



A. W. WELLINGTON AND A. F. RYAN.

PUMP.

APPLICATION FILVED JULY 5.1921.

Patented Aug. 8, 1922.

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PUMP.

Application filed July 5, 1921.

To all whom it may concern:

Be it known that we, ARTHUR W. WEL- LINGT'ON and ARTHUR'F. RYAN, citizens of the United States, and residents of San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

Our invention relates particularly to deep well contrifugal pumps. It is an object of our invention to provide a suitable means for limiting the swinging movement of the pump shaft. It is a further object to provide a suitable support for a pump shaft that will permit its free rotation with a minimum amount of friction and vibration thereby prolonging the life of the shaft and support. It is still a further object to provide an element mountable upon the shaft in such a manner as to entirely eliminate wearing of the shaft itself. In this invention we also contemplate providing a resilient element on the pump shaft whereby excessive friction and vibration are eliminated, this element preferably being revolubly mounted thereon.

In the drawing Figure 1 is a vertical section through a pump construction embodying our invention.

Figure 2 is an enlarged vertical section through the part A in Figure 1 and showing one form of our invention.

Figure 3 is a view similar to Figure 2 but showing another embodiment of our invention.

Figure 4 is a view similar to Figure 2 but showing still another embodiment of our invention.

Figure 5 is a view similar to Figure 2 but showing still another embodiment of our invention.

Referring more particularly to the drawing, we show at 1 a well bore having a pump bowl 2 suspended therein on casing 3. In bowl 2 is arranged a runner 4 operated by means of a shaft 5 extending from the bowl to the pump head 6 and operated through the medium of pulley 7.

In its simplest form the invention consists in providing a bumper 8, preferably a roller of vulcanized rubber, and securing it in position on the shaft 5 by means of collars 9 fastened thereto by set screws 10. In starting and stopping the pump a swinging movement is set up in the shaft 5 that is Specification of Letters Patent.

Serial No. 482,525.

sometimes so great that the shaft will con-- tact with the interior wall of the casing thereby causing undue vibration and wear upon the shaft itself and producing an undesirable sound. If, however, the shaft is fitted with a bumper or roller 8 of suitable resilient material the sound is entirely eliminated, and the friction and vibration is also practically eliminated since the roller 8 revolves and rolls over the interior surface of the casing instead of merely rubbing it as a fixed element would. A structure of this type is not readily destroyed by attrition due to the sand carried by the water being pumped because of the rolling motion of the roller 8 as above described. Substantially the same action takes place of course between the roller 8 and the shaft 5 as between the roller 8 and the casing 23. 'hen the pump attains its normal speed of rotation the shaft 5 is usually drawn into alignment by the water pressure on the pump, therefore the greatest value of the element 8 is exhibited during the starting and stopping of the pump when the water pressure is reduced.

In Figure 3 is shown a construction in which the swinging movement of the shaft 5 is somewhat restricted by means of an annular element 11 encirclingroller 8 and spaced .a distance therefrom and supported by webs 12 mounted on casing 3'. The action of the device is the same in this case as hereinbefore described the roller 8 rolling .about in the element 11 and preventing the excessive swinging of shaft 5 which sometimes occurs if the water pressure is not sufficient to overcome the same.

In Figure 4 the roller is shown as mounted upon a sleeve 13 forming a coupling for a jointed shaft 5. In this case the element 11 is reduced in circumference so as to loosely engage the roller 8 whereby the swinging of the shaft 5 is practically eliminated and yet the wearing of the parts is prevented by the rolling of the roller 8 on the element 11.

In Figure 5 the structure is similar to that in Figure 2, except that the bumper 8 is fixedly mounted on shaft 5 instead of revolving thereon. This bumper is preferably formed of resilient material such as vulcanized rubber.

It may be readily seen from the above disclosure that the essential element of the invention consists in arranging a roller of suitable material, preferably of resilient Patented Aug. 8, 1922.

herein set forth, but to include all changes.

in form, construction and method of operation that may be made within the scope of the appended claims.

\Ve claim:

1. In combination, a pump head, a discharge casing suspended therebelow, a pump bowl carried by said casing, an impeller arranged in said bowl, a shaft operatively mounted with relation to said head and impeller, and a roller operatively mounted on said shaft between said head and bowl.

2. In combination, apump head,'a discharge casing suspended therebelow, a pump bowl carried by said casing, an impeller arranged in said bowl, a shaft operatively mounted with relation to said head and impeller and unsupported against a swinging movement with relation to its normal vertical axis between said head and bowl, and a roller operatively mounted on. said shaft.

3. In combination, a pump head, a dis- I charge casing suspended therebelow, a pump bowl carried by. said casing, an impeller arranged in said bowl, a shaft 'operatively mounted with relation to said head and impeller and unsupported against a swinging movement with relation to its normal vertical axis between said head and bowl, and a roller operatively mounted on said shaft and means for limiting the swinging movement of said shaft. k

4. In combination, a pump head, a dis charge casing suspended therebelow, a pump bowl carried by said casing, an impeller arranged in said bowl, a shaft operatively mounted with relation to said head and impeller, an annular element concentrically arranged in said casing, and a roller operatively mounted on said shaft and within said annular element.

5. In combination, a pump head, a discharge casing suspended therebelow, a pump bowl carried by said casing, an impeller arranged in said bowl, a shaft operatively mounted with relation to said head and impeller, and a resilient roller operatively mounted on said shaft between said head and bowl.

' 6. In combination with a pump, a resilient roller, and means for mounting the same on the pump shaft.

7. In combination a pump including shaft sections, a coupling for said sections, and a resilient roller operatively mounted on said coupling.

8. In combination with a pump, a vulcanized rubber roller, and means for mounting the same on the pump shaft.

9. In combination, a pump head, a discharge casing suspended therebelow, a pump bowl carried by said casing, an impeller arranged in said bowl, a shaft operatively mounted with relation to said head and impeller, and a bumper mounted on said shaft between said head and bowl.

ARTHUR WV. WELLINGTON. ARTHUR F. RYAN. 

